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大家都看过报纸上无线电传真照片。这种新闻传真照片不甚清晰,只要仔细观察,会发现这类照片是由横成行竖成队的点点
Everyone has seen radio fax photos in newspapers. This news fax photo is not clear, as long as the careful observation, you will find this type of photo is a little bit of a team